A ritual the results in a skip be permanently removed from reality and is replaced by a counterpart theorized to be from a parallel world. No take backs. To be used only for a troublesome Keter and/or deemed a necessity. Results may vary.

At this level of detail, I think this is a good concept, because there are several good directions you can takes this.

If the finished product were nothing but this, though, and no backstory, I don't think it would be enough.

Some important questions to ask might be are:

-Where did this come from, or how was it created/found?
-Do any other universes have something like this, and have we have lost/gained a Keter anomaly because of someone else switching theirs?
-Why Keter only? What is the reason that only Keter anomalies are affected?

As a personal preference that not everyone may agree with, I think having cold cross-links (i.e. with no explanation) can be off-putting because most people don't have SCP's memorized by number. It might be better to do a side-by-side comparison table where the properties of both incoming and outgoing Keter anomalies are summarized.

I don't think readers' problems with the cross-links is that people don't have them memorized, that's what the links are for — it's the perceived notion (right or wrong) that you're piggybacking off and relying on the popularity of some of the most successful articles in the history of the site.

Also Math, I assume this is only for "Keter" anomalies based on the unknown risk versus reward factor — you don't know what you're going to get in return for the exchange, it may be something worse, so it should only be used under dire circumstances. It's not that only Keter anomalies are affected by it. You could use it on a safe skip if you wanted to, but it's not recommended (that's how I'm reading it, anyway).

To be honest, I don't think this is necessarily in itself a bad idea, but I also don't think it's going to work if it's dependent on utilizing classic skips. A lot of people will automatically downvote a new SCP article that references 106 and/or 031. Even crosslinking to lesser-known articles may automatically get you downvoted by some.

Yeah that's what I was going for in the Keter part, it's all about desperation. I don't want this to be dependent on other SCP's as I have a narrative in mind for this. Perhaps I should not show the skip outright but imply it is and focus more on it's counterpart and to justify it's termimation? It has to be good I know so that's the challenge.

Yeah agree — I can't imagine the Foundation trading a known variable (despite how awful it may be) for an unknown except — as you pointed out — out of desperation in an end-of-world type scenario.

Cross-linking can be done, it's all about execution, and you're not really retconning their origins, so that's good, but I wouldn't try it on classic skips, and I've only seen it done successfully maybe, maybe a handful of times.

I'm not sure the best approach to this… By termination, you mean its exchange, right? So the SCP is going to be the ritual itself? What did you have in mind for the ritual?

Good point, those two were just examples for this idea. I'm really intending to use lesser known skip's for this and they don't have that much of a presence.

I kind of have two ideas for the ritual: A procedure montauk-110-like-ish or this one involving the Stonehenge (sue me). The details are messy but the results are not immediate, it may take days, decades, probably even millennia for the counterpart to manifest and even then the foundation is not sure if it's the one. Also Math, I like your idea of the foundations in other universe using this, maybe this is all one messed up scp switcheroo.

Or perhaps, another idea please bear with me, is that the ritual isn't really destryoing SCP's, but to merge two parallel universes into one, become a whole new universe with the combined aspects of the two, creating a twisted mandela effect like consequence.

This whole idea was actually partly inspired by Bright's SCP-001 proposal, you know the part with the fairy's?

I was thinking of using this for the SCP-4000 contest but I'm not sure if I can make it in time.

I think this would certainly benefit from some more focus on the ritual itself — try making it unique and original. Perhaps the exchange of a Keter/end-of-world event hasn't actually happened yet, and it's simply a proposal on the article (would this then be Thaumiel class…)? Maybe there's a log of an MTF interrupting some cult from completing the ritual? I dunno… just spitballing here.